Casa de la Ciencia

This guide to Casa de la Ciencia in Seville traces a building's second life: raised as Peru's pavilion for the 1929 World's Fair, it spent two decades as the field office of the Doñana Biological Station before becoming a science museum. It follows the whale skeleton that greets you in the foyer back to a stranding near the Strait of Gibraltar and a marine park that once cared for it. Look for the sealed glass ecosphere and the case of Andalucian molluscs further inside.